\begin{table}[!t] \centering \sisetup{table-format=1.2} \def\sym X 1{\ifmmode^{ X 1}\else\(^{ X 1}\)\fi}
\small \caption{ First Stage: Rebate Amount Conditional on Rebate Receipt }
\begin{tabularx}{\hsize}{@{\hskip\tabcolsep\extracolsep\fill}l*{4}{S}}
\toprule     \multicolumn{4}{l}{\textbf{Panel A: Full Sample}} \\ \midrule
 &   \multicolumn{2}{c}{ Homogeneous Treatment} &  \multicolumn{2}{c}{Heterogeneous Treatment} \\ 
 \cmidrule(l{.75em}){2-3} \cmidrule(l{.75em}){4-5}
                    &\multicolumn{1}{L}{(1)}        &\multicolumn{1}{L}{(2)}        &\multicolumn{1}{L}{(3)}        &\multicolumn{1}{L}{(4)}        \\
\hline
\\
Rebate Indicator    &      948.60$^{***}$&      951.10$^{***}$&      950.54$^{***}$&      945.95$^{***}$\\
                    &     (10.37)        &     (10.29)        &     (10.19)        &     (10.07)        \\
Lag Rebate Indicator&                    &       11.97$^{***}$&        1.19$^{**}$ &       -2.00        \\
                    &                    &      (3.17)        &      (0.60)        &      (1.29)        \\
Lag Total Expenditure&                    &                    &                    &        0.00$^{***}$\\
                    &                    &                    &                    &      (0.00)        \\
Lag Motor Vehicle   &                    &                    &                    &       -0.00        \\
                    &                    &                    &                    &      (0.00)        \\
\hline
Income Decile FE    &\multicolumn{1}{c}{No}        &\multicolumn{1}{c}{No}        &\multicolumn{1}{c}{No}        &\multicolumn{1}{c}{Yes}        \\
Observations        &\multicolumn{1}{c}{16,962}        &\multicolumn{1}{c}{16,962}        &\multicolumn{1}{c}{16,962}        &\multicolumn{1}{c}{16,962}        \\
\hline \end{tabularx} 
